This page was generated from createMesh.ipynb.
Geometry and mesh for motor
[1]:
import sys
sys.path.insert(0,'../../../') # adds parent directory
import ngsolve as ng
import numpy as np
import netgen.occ as occ
from numpy import sin,cos,pi
from netgen.meshing import IdentificationType
def drawMagnet1(k):
m1xnew = m1[0]*cos(k*pi/4) -m1[1]*sin(k*pi/4)
m1ynew = m1[0]*sin(k*pi/4) +m1[1]*cos(k*pi/4)
m1new = (m1xnew,m1ynew,0)
m2xnew = m2[0]*cos(k*pi/4) -m2[1]*sin(k*pi/4)
m2ynew = m2[0]*sin(k*pi/4) +m2[1]*cos(k*pi/4)
m2new = (m2xnew,m2ynew,0)
m3xnew = m3[0]*cos(k*pi/4) -m3[1]*sin(k*pi/4)
m3ynew = m3[0]*sin(k*pi/4) +m3[1]*cos(k*pi/4)
m3new = (m3xnew,m3ynew,0)
m4xnew = m4[0]*cos(k*pi/4) -m4[1]*sin(k*pi/4)
m4ynew = m4[0]*sin(k*pi/4) +m4[1]*cos(k*pi/4)
m4new = (m4xnew,m4ynew,0)
a5xnew = a5[0]*cos(k*pi/4) -a5[1]*sin(k*pi/4)
a5ynew = a5[0]*sin(k*pi/4) +a5[1]*cos(k*pi/4)
a5new = (a5xnew,a5ynew,0)
a6xnew = a6[0]*cos(k*pi/4) -a6[1]*sin(k*pi/4)
a6ynew = a6[0]*sin(k*pi/4) +a6[1]*cos(k*pi/4)
a6new = (a6xnew,a6ynew,0)
a7xnew = a7[0]*cos(k*pi/4) -a7[1]*sin(k*pi/4)
a7ynew = a7[0]*sin(k*pi/4) +a7[1]*cos(k*pi/4)
a7new = (a7xnew,a7ynew,0)
a8xnew = a8[0]*cos(k*pi/4) -a8[1]*sin(k*pi/4)
a8ynew = a8[0]*sin(k*pi/4) +a8[1]*cos(k*pi/4)
a8new = (a8xnew,a8ynew,0)
#Draw magnet
seg1 = occ.Segment(m1new,m2new);
seg2 = occ.Segment(m2new,m3new);
seg3 = occ.Segment(m3new,m4new);
seg4 = occ.Segment(m4new,m1new);
magnet1 = occ.Face(occ.Wire([seg1,seg2,seg3,seg4]))
#Draw air around magnet
air_seg1 = occ.Segment(m1new,a5new)
air_seg2 = occ.Segment(a5new,a6new)
air_seg3 = occ.Segment(a6new,m2new)
air_seg4 = occ.Segment(m2new,m1new)
air_magnet1_1 = occ.Face(occ.Wire([air_seg1,air_seg2,air_seg3,air_seg4]))
air_seg5 = occ.Segment(m4new,m3new)
air_seg6 = occ.Segment(m3new,a7new)
air_seg7 = occ.Segment(a7new,a8new)
air_seg8 = occ.Segment(a8new,m4new)
air_magnet1_2 = occ.Face(occ.Wire([air_seg5,air_seg6,air_seg7,air_seg8]))
return (magnet1,air_magnet1_1,air_magnet1_2)
def drawMagnet2(k):
m5xnew = m5[0]*cos(k*pi/4) -m5[1]*sin(k*pi/4)
m5ynew = m5[0]*sin(k*pi/4) +m5[1]*cos(k*pi/4)
m5new = (m5xnew,m5ynew,0)
m6xnew = m6[0]*cos(k*pi/4) -m6[1]*sin(k*pi/4)
m6ynew = m6[0]*sin(k*pi/4) +m6[1]*cos(k*pi/4)
m6new = (m6xnew,m6ynew,0)
m7xnew = m7[0]*cos(k*pi/4) -m7[1]*sin(k*pi/4)
m7ynew = m7[0]*sin(k*pi/4) +m7[1]*cos(k*pi/4)
m7new = (m7xnew,m7ynew,0)
m8xnew = m8[0]*cos(k*pi/4) -m8[1]*sin(k*pi/4)
m8ynew = m8[0]*sin(k*pi/4) +m8[1]*cos(k*pi/4)
m8new = (m8xnew,m8ynew,0)
a1xnew = a1[0]*cos(k*pi/4) -a1[1]*sin(k*pi/4)
a1ynew = a1[0]*sin(k*pi/4) +a1[1]*cos(k*pi/4)
a1new = (a1xnew,a1ynew,0)
a2xnew = a2[0]*cos(k*pi/4) -a2[1]*sin(k*pi/4)
a2ynew = a2[0]*sin(k*pi/4) +a2[1]*cos(k*pi/4)
a2new = (a2xnew,a2ynew,0)
a3xnew = a3[0]*cos(k*pi/4) -a3[1]*sin(k*pi/4)
a3ynew = a3[0]*sin(k*pi/4) +a3[1]*cos(k*pi/4)
a3new = (a3xnew,a3ynew,0)
a4xnew = a4[0]*cos(k*pi/4) -a4[1]*sin(k*pi/4)
a4ynew = a4[0]*sin(k*pi/4) +a4[1]*cos(k*pi/4)
a4new = (a4xnew,a4ynew,0)
#Draw magnet
seg1 = occ.Segment(m5new,m6new)
seg2 = occ.Segment(m6new,m7new)
seg3 = occ.Segment(m7new,m8new)
seg4 = occ.Segment(m8new,m5new)
magnet2 = occ.Face(occ.Wire([seg1,seg2,seg3,seg4]))
air_seg1 = occ.Segment(m5new,a3new)
air_seg2 = occ.Segment(a3new,a4new)
air_seg3 = occ.Segment(a4new,m6new)
air_seg4 = occ.Segment(m6new,m5new)
air_magnet2_1 = occ.Face(occ.Wire([air_seg1,air_seg2,air_seg3,air_seg4]))
air_seg5 = occ.Segment(m8new,m7new)
air_seg6 = occ.Segment(m7new,a2new)
air_seg7 = occ.Segment(a2new,a1new)
air_seg8 = occ.Segment(a1new,m8new)
air_magnet2_2 = occ.Face(occ.Wire([air_seg5,air_seg6,air_seg7,air_seg8]))
return (magnet2,air_magnet2_1,air_magnet2_2)
def drawStatorNut(k):
s1xnew = s1[0]*cos(k*pi/24) -s1[1]*sin(k*pi/24)
s1ynew = s1[0]*sin(k*pi/24) +s1[1]*cos(k*pi/24)
s1new = (s1xnew,s1ynew,0)
s2xnew = s2[0]*cos(k*pi/24) -s2[1]*sin(k*pi/24)
s2ynew = s2[0]*sin(k*pi/24) +s2[1]*cos(k*pi/24)
s2new = (s2xnew,s2ynew,0)
s3xnew = s3[0]*cos(k*pi/24) -s3[1]*sin(k*pi/24)
s3ynew = s3[0]*sin(k*pi/24) +s3[1]*cos(k*pi/24)
s3new = (s3xnew,s3ynew,0)
s4xnew = s4[0]*cos(k*pi/24) -s4[1]*sin(k*pi/24)
s4ynew = s4[0]*sin(k*pi/24) +s4[1]*cos(k*pi/24)
s4new = (s4xnew,s4ynew,0)
s5xnew = s5[0]*cos(k*pi/24) -s5[1]*sin(k*pi/24)
s5ynew = s5[0]*sin(k*pi/24) +s5[1]*cos(k*pi/24)
s5new = (s5xnew,s5ynew,0)
s6xnew = s6[0]*cos(k*pi/24) -s6[1]*sin(k*pi/24)
s6ynew = s6[0]*sin(k*pi/24) +s6[1]*cos(k*pi/24)
s6new = (s6xnew,s6ynew,0)
s7xnew = s7[0]*cos(k*pi/24) -s7[1]*sin(k*pi/24)
s7ynew = s7[0]*sin(k*pi/24) +s7[1]*cos(k*pi/24)
s7new = (s7xnew,s7ynew,0)
s8xnew = s8[0]*cos(k*pi/24) -s8[1]*sin(k*pi/24)
s8ynew = s8[0]*sin(k*pi/24) +s8[1]*cos(k*pi/24)
s8new = (s8xnew,s8ynew,0)
#Draw stator coil
seg1 = occ.Segment(s2new,s3new)
seg2 = occ.Segment(s3new,s4new)
seg3 = occ.Segment(s4new,s5new)
seg4 = occ.Segment(s5new,s6new)
seg5 = occ.Segment(s6new,s7new)
seg6 = occ.Segment(s7new,s2new)
stator_coil = occ.Face(occ.Wire([seg1,seg2,seg3,seg4,seg5,seg6]))
#Draw air nut in the stator
air_seg1 = occ.Segment(s1new,s2new)
air_seg2 = occ.Segment(s2new,s7new)
air_seg3 = occ.Segment(s7new,s8new)
air_seg4 = occ.Segment(s8new,s1new)
stator_air = occ.Face(occ.Wire([air_seg1,air_seg2,air_seg3,air_seg4]))
stator_air = stator_air-(stator_air*air_gap_stator)
return (stator_coil,stator_air)
def f48(s):
return (s-1)%48
orign = (0,0);
#inner radius rotor
r1 = 26.5*10**(-3);
#outer radius rotor
r2 = 78.63225*10**(-3);
#sliding mesh rotor
r4 = 78.8354999*10**(-3);
#sliding mesh stator
r6 = 79.03874999*10**(-3);
#inner radius stator
r7 = 79.242*10**(-3);
#outer radius stator
r8 = 116*10**(-3)
#Points for magnet1 and air around magnet1
m1 = (69.23112999*10**(-3),7.535512*10**(-3),0)
m2 = (74.828958945*10**(-3),10.830092744*10**(-3),0)
m3 = (66.13621099700001*10**(-3),25.599935335*10**(-3),0)
m4 = (60.53713*10**(-3),22.30748*10**(-3),0)
a5 = (69.75636*10**(-3),5.749913*10**(-3),0)
a6 = (75.06735*10**(-3),3.810523*10**(-3),0)
a7 = (65.3506200*10**(-3),26.51379*10**(-3),0)
a8 = (59.942145092*10**(-3),24.083661604*10**(-3),0)
#Points for magnet2 and air around magnet2
m5 = (58.579985516*10**(-3), 27.032444757*10**(-3),0)
m6 = (64.867251151*10**(-3),28.663475405*10**(-3),0)
m7 = (60.570096319*10**(-3),45.254032279*10**(-3),0)
m8 = (54.282213127*10**(-3),43.625389857*10**(-3),0)
a1 = (53.39099766*10**(-3),45.259392713*10**(-3),0)
a2 = (55.775078884*10**(-3),50.386185578*10**(-3),0)
a3 = (59.41521771*10**(-3),25.355776837*10**(-3),0)
a4 = (65.12210917100001*10**(-3),27.707477175*10**(-3),0)
#Points for Stator Nut and air in the stator
s1 = (79.04329892000*10**(-3),3.9538335974*10**(-3),0)
s2 = (80.143057128*10**(-3),4.0037794254*10**(-3),0)
s3 = (80.387321219*10**(-3),2.965459706*10**(-3),0)
s4 = (98.78501315600001*10**(-3),3.9007973292*10**(-3),0)
s5 = (98.44904989600001*10**(-3),9.026606148400001*10**(-3),0)
s6 = (80.086666706*10**(-3),7.5525611543*10**(-3),0)
s7 = (79.980020247*10**(-3),6.4912415424*10**(-3),0)
s8 = (78.88229587*10**(-3),6.4102654448*10**(-3),0)
domains = []
# h_max = 0.001
# h_air_gap = 0.25*h_max
# h_air_magnets = h_max
# h_coils = h_max
# h_stator_air = h_max
# h_magnets = h_max
# h_stator_iron = h_max
# h_rotor_iron = h_max
# h_shaft_iron = h_max
h_max = 1
h_air_gap = r6-r4 #0.05*h_max
h_air_magnets = h_max
h_coils = h_max
h_stator_air = h_max
h_magnets = h_max
h_stator_iron = h_max
h_rotor_iron = h_max
h_shaft_iron = h_max
# h_max = 0.005
# h_air_gap = 0.05*h_max
# h_air_magnets = h_max
# h_coils = h_max
# h_stator_air = h_max
# h_magnets = h_max
# h_stator_iron = h_max
# h_rotor_iron = h_max
# h_shaft_iron = h_max
rotor_inner = occ.Circle(orign,r=r1).Face()
rotor_outer = occ.Circle(orign,r=r2).Face()
sliding_inner = occ.Circle(orign,r=r4).Face()
sliding_outer = occ.Circle(orign,r=r6).Face()
stator_inner = occ.Circle(orign,r=r7).Face()
stator_outer = occ.Circle(orign,r=r8).Face()
rotor_inner.edges[0].name = "rotor_inner"
rotor_outer.edges[0].name = "rotor_outer"
stator_inner.edges[0].name = "stator_inner"
stator_outer.edges[0].name = "stator_outer"
rotor_iron = rotor_outer - rotor_inner
air_gap_stator = stator_inner - sliding_outer
air_gap = sliding_outer - sliding_inner
air_gap_rotor = sliding_inner - rotor_outer
stator_iron = stator_outer - stator_inner
string_coils = ""
domain_name_coil = {0: "coil1", 1: "coil2", 2: "coil3", 3:"coil4", 4:"coil5",
5:"coil6", 6:"coil7", 7:"coil8", 8: "coil9", 9: "coil10", 10: "coil11", 11:"coil12",
12:"coil13",13: "coil14", 14: "coil15", 15: "coil16", 16:"coil17", 17:"coil18",
18: "coil19", 19: "coil20", 20: "coil21", 21:"coil22", 22:"coil23",
23: "coil24", 24: "coil25", 25: "coil26", 26:"coil27", 27:"coil28",
28: "coil29", 29: "coil30", 30: "coil31", 31:"coil32", 32:"coil33",
33: "coil34", 34: "coil35", 35: "coil36", 36:"coil37", 37:"coil38",
38: "coil39", 39: "coil40", 40: "coil41", 41:"coil42", 42:"coil43",
43: "coil44", 44: "coil45", 45: "coil46", 46:"coil47", 47:"coil48"}
for k in range(48):#48
(stator_coil,stator_air) = drawStatorNut(k)
stator_coil.faces.name = domain_name_coil[k]
stator_air.faces.name = "air"
stator_iron -= stator_coil
stator_iron -= stator_air
domains.append(stator_coil)
domains.append(stator_air)
string_coils += domain_name_coil[k] + "|"
domains_magnets = [];
domains_air_magnets = [];
domain_name_magnet1 = {0: "magnet1", 1: "magnet3", 2: "magnet5", 3:"magnet7", 4:"magnet9",
5:"magnet11", 6:"magnet13", 7:"magnet15"}
domain_name_magnet2 = {0: "magnet2", 1: "magnet4", 2: "magnet6", 3:"magnet8", 4:"magnet10",
5:"magnet12", 6:"magnet14", 7:"magnet16"}
for k in range(8):#8
(magnet1,air_magnet1_1,air_magnet1_2) = drawMagnet1(k)
(magnet2,air_magnet2_1,air_magnet2_2) = drawMagnet2(k)
magnet1.faces.name = domain_name_magnet1[k]
magnet1.faces.maxh = h_magnets
magnet1.edges[0].name = "magnets_interface"
magnet1.edges[1].name = "magnets_interface"
magnet1.edges[2].name = "magnets_interface"
magnet1.edges[3].name = "magnets_interface"
magnet2.faces.name = domain_name_magnet2[k]
magnet2.faces.maxh = h_magnets
magnet2.edges[0].name = "magnets_interface"
magnet2.edges[1].name = "magnets_interface"
magnet2.edges[2].name = "magnets_interface"
magnet2.edges[3].name = "magnets_interface"
air_magnet1_1.faces.name = "rotor_air"
air_magnet1_2.faces.name = "rotor_air"
air_magnet2_1.faces.name = "rotor_air"
air_magnet2_2.faces.name = "rotor_air"
air_magnet1_1.faces.maxh = h_air_magnets
air_magnet1_2.faces.maxh = h_air_magnets
air_magnet2_1.faces.maxh = h_air_magnets
air_magnet2_2.faces.maxh = h_air_magnets
rotor_iron -= magnet1
rotor_iron -= air_magnet1_1;
rotor_iron -= air_magnet1_2;
rotor_iron -= magnet2
rotor_iron -= air_magnet2_1;
rotor_iron -= air_magnet2_2;
domains.append(magnet1)
domains.append(magnet2)
domains.append(air_magnet1_1)
domains.append(air_magnet1_2)
domains.append(air_magnet2_1)
domains.append(air_magnet2_2)
stator_iron.faces.name = "stator_iron"
stator_iron.faces.maxh = h_stator_iron
air_gap_stator.faces.maxh = h_air_gap
air_gap_stator.faces.name = "air_gap_stator"
air_gap.faces.maxh = h_air_gap
air_gap.faces.name = "air_gap"
air_gap_rotor.faces.maxh = 1.08*h_air_gap
air_gap_rotor.faces.name = "air_gap_rotor"
rotor_iron.faces.name = "rotor_iron"
rotor_iron.faces.maxh = h_rotor_iron
shaft_iron = rotor_inner
shaft_iron.faces.name = "shaft_iron"
shaft_iron.faces.maxh = h_shaft_iron
domains.append(shaft_iron)
domains.append(rotor_iron)
domains.append(air_gap_stator)
domains.append(air_gap)
domains.append(air_gap_rotor)
domains.append(stator_iron)
pizza = occ.MoveTo(*orign).Line(1).Rotate(90).Line(1).Close().Face()
geo = pizza*occ.Glue(domains)
# geo.edges[0].name = "left"
geo.edges[4].name = "left"
geo.edges[24].name = "left"
geo.edges[28].name = "left"
geo.edges[32].name = "left"
geo.edges[96].name = "left"
geo.edges[2].name = "right"
geo.edges[6].name = "right"
geo.edges[26].name = "right"
geo.edges[30].name = "right"
geo.edges[46].name = "right"
geo.edges[98].name = "right"
rot = occ.Rotation(occ.Axis((0,0,0), occ.Z), 45)
geo.edges[2].Identify(geo.edges[0], "per", IdentificationType.PERIODIC,rot)
geo.edges[6].Identify(geo.edges[4], "per", IdentificationType.PERIODIC,rot)
geo.edges[26].Identify(geo.edges[24], "per", IdentificationType.PERIODIC,rot)
geo.edges[30].Identify(geo.edges[28], "per", IdentificationType.PERIODIC,rot)
geo.edges[46].Identify(geo.edges[32], "per", IdentificationType.PERIODIC,rot)
geo.edges[98].Identify(geo.edges[96], "dsa", IdentificationType.UNDEFINED,rot)
geoOCC = occ.OCCGeometry(geo, dim=2)
geoOCCmesh = geoOCC.GenerateMesh()
ngsolvemesh = ng.Mesh(geoOCCmesh)
# ngsolvemesh.Refine()
# ngsolvemesh.Refine()
# geoOCCmesh.SecondOrder()
[2]:
from netgen.webgui import Draw as DrawGeo
from ngsolve.webgui import Draw as DrawMesh
DrawGeo(geo)
!which netgen
/opt/homebrew/bin/netgen
[3]:
#ngsolvemesh.Refine()
mesh = ngsolvemesh
plist = []
for pair in mesh.ngmesh.GetIdentifications():
plist += list(mesh.vertices[pair[0]-1].point) + [0]
plist += list(mesh.vertices[pair[1]-1].point) + [0]
scene = DrawMesh(mesh, objects=[{"type" : "lines",
"position" : plist,
"name": "identification",
"color": "purple"}])
[8]:
#####################################################################################################################
#####################################################################################################################
Mperp_mag1 = np.array([-0.507223091788922, 0.861814791678634])
Mperp_mag2 = np.array([-0.250741225095427, 0.968054150364350])
Mperp_mag3 = (-1)*np.array([-0.968055971101187, 0.250734195544481])
Mperp_mag4 = (-1)*np.array([-0.861818474866413, 0.507216833690415])
Mperp_mag5 = np.array([-0.861814791678634, -0.507223091788922])
Mperp_mag6 = np.array([-0.968054150364350, -0.250741225095427])
Mperp_mag7 = (-1)*np.array([-0.250734195544481, -0.968055971101187])
Mperp_mag8 = (-1)*np.array([-0.507216833690415, -0.861818474866413])
Mperp_mag9 = np.array([0.507223091788922, -0.861814791678634])
Mperp_mag10 = np.array([0.250741225095427, -0.968054150364350])
Mperp_mag11 = (-1)*np.array([0.968055971101187, -0.250734195544481])
Mperp_mag12 = (-1)*np.array([0.861818474866413, -0.507216833690415])
Mperp_mag13 = np.array([0.861814791678634, 0.507223091788922])
Mperp_mag14 = np.array([0.968054150364350, 0.250741225095427])
Mperp_mag15 = (-1)*np.array([0.250734195544481, 0.968055971101187])
Mperp_mag16 = (-1)*np.array([0.507216833690415, 0.861818474866413])
Mperp_mag = np.c_[Mperp_mag1,Mperp_mag2, Mperp_mag3, Mperp_mag4, Mperp_mag5, Mperp_mag6, Mperp_mag7, Mperp_mag8,
Mperp_mag9,Mperp_mag10,Mperp_mag11,Mperp_mag12,Mperp_mag13,Mperp_mag14,Mperp_mag15,Mperp_mag16]
m = np.c_[Mperp_mag[1,:],-Mperp_mag[0,:]].T
nu0 = 10**7/(4*np.pi)
m = m*nu0*1.158095238095238
#####################################################################################################################
#####################################################################################################################
offset = 0
polepairs = 4
gamma_correction_model = -30.0
gamma = 40.0
gamma_correction_timestep = -1
phi0 = (gamma + gamma_correction_model + gamma_correction_timestep * polepairs) * np.pi/180.0
area_coils_UPlus = np.r_[f48(offset+1) , f48(offset+2)]
area_coils_VMinus = np.r_[f48(offset+3) , f48(offset+4)]
area_coils_WPlus = np.r_[f48(offset+5) , f48(offset+6)]
area_coils_UMinus = np.r_[f48(offset+7) , f48(offset+8)]
area_coils_VPlus = np.r_[f48(offset+9) , f48(offset+10)]
area_coils_WMinus = np.r_[f48(offset+11), f48(offset+12)]
for k in range(1,4):
area_coils_UPlus = np.r_[area_coils_UPlus, f48(k*12+offset+1)]
area_coils_UPlus = np.r_[area_coils_UPlus, f48(k*12+offset+2)]
area_coils_VMinus = np.r_[area_coils_VMinus, f48(k*12+offset+3)]
area_coils_VMinus = np.r_[area_coils_VMinus, f48(k*12+offset+4)]
area_coils_WPlus = np.r_[area_coils_WPlus, f48(k*12+offset+5)]
area_coils_WPlus = np.r_[area_coils_WPlus, f48(k*12+offset+6)]
area_coils_UMinus = np.r_[area_coils_UMinus, f48(k*12+offset+7)]
area_coils_UMinus = np.r_[area_coils_UMinus, f48(k*12+offset+8)]
area_coils_VPlus = np.r_[area_coils_VPlus, f48(k*12+offset+9)]
area_coils_VPlus = np.r_[area_coils_VPlus, f48(k*12+offset+10)]
area_coils_WMinus = np.r_[area_coils_WMinus, f48(k*12+offset+11)]
area_coils_WMinus = np.r_[area_coils_WMinus, f48(k*12+offset+12)]
I0peak = 1555.63491861 ### *1.5
phase_shift_I1 = 0.0
phase_shift_I2 = 2/3*np.pi#4/3*pi
phase_shift_I3 = 4/3*np.pi#2/3*pi
I1c = I0peak * np.sin(phi0 + phase_shift_I1)
I2c = (-1)* I0peak * np.sin(phi0 + phase_shift_I2)
I3c = I0peak * np.sin(phi0 + phase_shift_I3)
areaOfOneCoil = 0.00018053718538758062
UPlus = I1c* 2.75 / areaOfOneCoil
VMinus = I2c* 2.75 / areaOfOneCoil
WPlus = I3c* 2.75 / areaOfOneCoil
UMinus = -I1c* 2.75 / areaOfOneCoil
VPlus = -I2c* 2.75 / areaOfOneCoil
WMinus = -I3c* 2.75 / areaOfOneCoil
j3 = np.zeros(48)
j3[area_coils_UPlus] = UPlus
j3[area_coils_VMinus] = VMinus
j3[area_coils_WPlus] = WPlus
j3[area_coils_UMinus] = UMinus
j3[area_coils_VPlus] = VPlus
j3[area_coils_WMinus] = WMinus
#####################################################################################################################
#####################################################################################################################
import scipy.io
scipy.io.savemat('motor.mat', {"m" : m,
"j3" : j3,
"geoOCC" : geoOCC},
do_compression=True)
#####################################################################################################################
#####################################################################################################################
np.savez_compressed('motor.npz', m=m, j3=j3, geoOCC = geoOCC)
#####################################################################################################################
import sys
import pde
import plotly.io as pio
pio.renderers.default = "notebook"
MESH = pde.mesh.netgen(geoOCCmesh)
ind_air_all = np.flatnonzero(np.core.defchararray.find(MESH.regions_2d,'air')!=-1)
ind_stator_rotor = np.flatnonzero(np.core.defchararray.find(MESH.regions_2d,'iron')!=-1)
ind_magnet = np.flatnonzero(np.core.defchararray.find(MESH.regions_2d,'magnet')!=-1)
ind_coil = np.flatnonzero(np.core.defchararray.find(MESH.regions_2d,'coil')!=-1)
ind_shaft = np.flatnonzero(np.core.defchararray.find(MESH.regions_2d,'shaft')!=-1)
trig_air_all = np.where(np.isin(MESH.t[:,-1],ind_air_all))
trig_stator_rotor = np.where(np.isin(MESH.t[:,-1],ind_stator_rotor))
trig_magnet = np.where(np.isin(MESH.t[:,-1],ind_magnet))
trig_coil = np.where(np.isin(MESH.t[:,-1],ind_coil))
trig_shaft = np.where(np.isin(MESH.t[:,-1],ind_shaft))
vek = np.zeros(MESH.nt)
vek[trig_air_all] = 1
vek[trig_magnet] = 2
vek[trig_coil] = 3
vek[trig_stator_rotor] = 4
vek[trig_shaft] = 3.6
fig = MESH.pdemesh()
fig = MESH.pdesurf(vek)
fig.show()
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